The hatching period of the bright red bug, Lygidea mendax, in southern Pennsylvania comes so late in the blossom pink stage of nearly all varieties of apples that the pink spray is ineffective in control. A comparison of pink with the petal fall spray on the York Imperial, a late blooming variety, gave little difference in control. Two applications of nicotine gave no additional control. On earlier blooming varieties the petal fall spray would prove much more effective. One application of nicotine at petal fall is advised.
Document Type: Research Article
Publication date: December 1, 1923
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